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分散性黏土抗水蚀能力很低,对水利工程、道路工程等建筑物的安全性造成严重威胁,是近年来岩土工程界比较关注的特殊土类之一。由于分散性黏土发现较晚,工程实例较少,对分散性黏土的研究不够深入。文中从发现历史与工程危害、地质条件与分布规律、试验鉴别方法与工程特性、分散机制与微观结构、工程应用等方面对分散性黏土的研究现状进行了分析总结,提出研究中存在的若干问题及研究方向。
The dispersive clay has very low resistance to water erosion and poses a serious threat to the safety of water conservancy projects, road works and other buildings. It is one of the special types of soil that has attracted more attention in geotechnical engineering in recent years. Due to the late discovery of dispersible clays and the few engineering cases, the research on clayey clays is not deep enough. In this paper, the research status of dispersible clays from the aspects of the discovery of history and engineering hazards, geological conditions and distribution, experimental identification method and engineering characteristics, dispersion mechanism and microstructure, engineering application are analyzed and summarized, and some problems in the study are put forward And research direction.